Question

What are amphibians?
A. Animals that live in land.
B. Animals that live in water.
C. Animals that can live in both land and sea.
D. All of the above

Answer 1

Hint: The classification of organisms is done using various criteria to do so the organization of the cell, tissue, environment of the organisms, and also the structural differentiation is few of them. The word ‘amphibians’ refers to ‘two lives’ which means they spend their lives in two habitats.

Complete step-by-step answer: The word 'amphibian' means "two lives" as a result of which all amphibians spend a minimum of some part of life within the water and another part of their lives toward land. Amphibians include a group of animals that are from frogs, toads to salamanders which will be found on each continent apart from Antarctica. They're vertebrates, which implies they have backbones and are quite similar to reptiles. In addition to that, they’re cold-blooded. In contrast to reptiles, amphibians don't have scaly skin. Instead, their skin is sometimes swish and dampish. Water is the place wherever amphibians sometimes lay their eggs. Their eggs are usually protected by jelly-like substances. There aren't any marine forms of amphibians. Some frogs prefer living on trees at times. Example- genus Hyla (tree frog). Talking about the temperature amphibians are poikilothermic and most of the species of amphibians prefer to hibernate in winter while some of them aestivate within the dry summer. Their body varies from broad to slender, long to short, and cylindrical. It’s composed of four components that embrace the head, neck, trunk, and tail. The neck is absent in several amphibians.
Hence, option C- Animal that can live in both land and sea is the correct option.

Note: The amphibian group includes toads, salamanders, frogs, etc and every one of them lay their eggs within the water. The young found within the water accustomed hatch the eggs and impregnated by the male amphibian. All of them bear constant three stages of life cycles.